| XAD-4树脂对水相中邻氨基苯酚的吸附特性研究 |
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| 引用本文： | 王桂仙,张启伟.XAD-4树脂对水相中邻氨基苯酚的吸附特性研究[J].丽水学院学报,2011,33(2):21-23,28. |
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| 作者姓名： | 王桂仙 张启伟 |
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| 作者单位： | 丽水学院化学与生命科学学院,浙江丽水,323000 |
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| 摘 要： | 研究了XAD-4大孔树脂对水相中邻氨基苯酚的吸附特性。研究内容包括接触时间、pH、吸附剂质量、吸附温度对吸附的影响。树脂能有效地除去水相中的邻氨基苯酚,在pH=3.2～5.2的范围内树脂对邻氨基苯酚均有较大的吸附,其最佳酸度为pH=4.0,吸附率可达97.3%。研究表明Langmuir等温吸附模型能较好地描述吸附过程。用1.5～2.0 mol/L HCl对吸附后的树脂进行再生试验,脱附率可达91.2%。
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| 关 键 词： | XAD-4树脂 邻氨基苯酚 吸附 脱附 |
A Study on Adsorption Properties of O-aminophenol by XAD-4 Resin in Aqueous Solution |
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| Wang Guixian,Zhang Qiwei.A Study on Adsorption Properties of O-aminophenol by XAD-4 Resin in Aqueous Solution[J].Journal of Lishui University,2011,33(2):21-23,28. |
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| Authors: | Wang Guixian Zhang Qiwei |
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| Institution: | Wang Guixian,Zhang Qiwei (College of Chemistry and Life Sciences,Lishui University,Lishui Zhejiang 323000,China) |
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| Abstract: | The adsorption properties of the XAD-4 resin for O-aminophenol was studied in aqueous solution.Some parameters including contact time,pH,mass of adsorbent,and adsorption temperature were investigated.Results showed that XAD-4 resin could effectively remove O-aminophenol from aqueous solution.The resin showed high adsorption ability for O-aminophenol at a wide pH range（pH=3.2～5.2）.The optima adsorption acidity of the resin for O-aminophenol is pH 4.0 in HAc-NaAc medium,and adsorption rate is 97.3%.The adsorption behavior of the resin for O-aminophenol obeys the Langmuir isotherm model.After the resin of adsorption is regenerated with1.5～2.0 mol/L HCl,the percentages of regeneration can be raised to 91.2 %. |
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| Keywords: | XAD-4 resin O-aminophenol adsorption desorption |
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